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Echelon
01
echelon, echelon diffractierooster
a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
02
echelon, echelonformatie
a diagonal formation of things, especially used in military troops
03
niveau, rang
a level or rank in an organization, profession, or society, indicating a person's status or authority within that hierarchy
Voorbeelden
Her influential family belonged to the upper echelon of social circles in the city.
Haar invloedrijke familie behoorde tot de bovenste echelon van sociale kringen in de stad.



























